Tool



Oct. 10, 1933. Q MlLTON 1,929,600

TOOL

Filed March 11, 1933 I N V EN TOR. Canems 4 M4 ran BY flawgiiaz- ATTORNEY.

. the jaws is provided to accommodate the margin Patented Oct. 10, 1933UNITED STATES PATENT OFF-ICE 2 Claims.

This invention relates generally to tools and more particularly to atool for stretching screen wire on a frame or screen sash.

The main object of the invention is to provide a tool having jaws forgripping the edge of the screen wire and a cam for engaging the edge ofthe screen frame and exerting an outward or edgewise pull on the screenwire to stretch the sameover the frame.

Another object is to provide a tool of this kind, including pivotallyconnected jaws and handles and a cam and handle pivoted between bearingears extended from one of the jaws.

With these and other objects in view, the invention resides in the novelconstruction and arrangement of'parts as hereinafter set forth andclaimed, reference being had to the accompanying drawing, wherein Figure1 is a side view of the tool in use in stretching screen wire over aframe, the screen 7 wire and frame being shown fragmentally and in crosssection.

Figure 2 is an inverted plan alone.

Referring now with more particularity to the drawing, the tool comprisesa pair of handles 1 and 2 having jaws 3 and 4 at their ends andpivotally connected adjacent the-junction of the jaws and handles by ascrew 5. Adjacent the screw 5 the handles 1 and 2 are conventionallyrecessed and cut away, as shown at 6, to permit the handles to be swungapart or together to open and close the jaws 3 and 4 in the usualmanner. The jaws 3 and 4 are widened at their outer view r the i001 endsand tapered from these ends inwardly, as

designated at 7, to increase their grip or area of contact with thescreen wire and are relatively flattened and are recessed arcuately ontheir inner faces 8, whereby only their outer ends 9 come in contactwith the wire and space between of the wire back of the point at whichit is gripped, as shown in Figure 1.

A pair of spaced and parallel bearing ears 10 are formed on the handle 1just inwardly of the jaw 3 and are provided with aligned apertures 11. Acam 12 having a handle 13 is pivotally mounted between these cars 10 bya bearing pin 14 extended through the-said apertures 11. This cam 12 hasa bearing face or nose 15 adapted to project from the outer and straightends or edges 16 of the bearing ears 10 when the cam handle 13 is pulledtoward the handle 2, the bearing pin 14 being located at a suitableeccentric point for this purpose.

marginal face. C of the frame B and the cam handle 13 is pulled towardthe handle 2, the two 'dles, jaws formed on the handles, bearing ears Inuse, the screen wire A is gripped near its edge by the jaws 3 and 4, andis pulled taut over the frame B. The cam 12 being in the position shownin Figure 1, is then engaged with the outer handles '1 and 2 meanwhilebeing pressed tightly together to grip the screen wire.- The cam 12 isthus turned on the pin 14 and its bearing face 15 moves forward oroutward from the bearing ears 10 and stretches the wire A tightly aswill be understood. The wire may then be held tightly stretched while itis tacked or otherwise secured to the frame. The cam handle 13 liesbeneath and adjacent the handle 2, while the wire is being stretched,and thus makes it convenient to hold the handles 1, 2 and 13 in theirproper positions. Then as the handles 1 and 2 are spread apart to obtainthe next grip on the wire, the cam handle 13 is likewise swung outwardby the handle 2 andmoves into position shown in Figure 1, for exertingthe stretching tension. 1

Further details of the operation and utility of the tool will beapparent without further description, and while I have herein set fortha certain preferred embodiment of my invention, it is understood that Imay vary from the same in minor structural details, so as best toconstruct a practical device for the purpose intended, not departingfrom the spirit of the invention and within the scope of the appendedclaims.

I claim: 1. In a tool, a pair of pivotally connected hanformed on onehandle adjacent the jaw thereon, 0

a cam pivoted between the bearing ears, and a handle on the cam.

2. In a tool, a pair of pivotally connected handles, jaws formed on oneend of the handles, spaced bearing ears formed on one handle adjacentthe jaw thereon, the said bearing ears having aligned apertures, a cammounted between the bearing ears, a bearing pin passed eccentricallythrough the cam and rotatably seated in the said apertures in thebearing ears, and a handle on the cam extended outward therefrom.

CHARLES A. MILTON.

